俞哲彬

Adult users are still ready to wait, but children need an instant reaction and preferably in a game form from the first second of interaction with the interface.
If you need to pause (for example, by counting the test results), give the child something to do at…

If a user has to work hard to understand what it is you’re offering them, they’re not going to work hard to give you their time or money

I suspect designers’ creative and intellectual laziness is to blame, too. In the age of mobile-first, generic, framework-driven development, nobody seems to bother with the visual and contextual integrity of a web page.